/Engine/Plugins/Runtime/AudioSynesthesia/Source/AudioSynesthesiaCore/Public/SynesthesiaSpectrumAnalyzer.h
Calculate the spectrum values for the input samples. OutSpectrum should have (num input samples / 2) + 1 values.
void ProcessAudio ( [TArrayView](API\Runtime\Core\Containers\TArrayView)< const float > InSampleView, [TArrayView](API\Runtime\Core\Containers\TArrayView)< float > OutSpectrum )